SB20241230290 - Multiple vulnerabilities in TCPDF
Published: December 30, 2024
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 4 secuirty vulnerabilities.
1) Cross-site scripting (CVE-ID: CVE-2024-56519)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of SVG font-family attribute in setSVGStyles when handling . A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
2) Improper certificate validation (CVE-ID: CVE-2024-56521)
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists due to improper certificate validation when using CURLOPT_SSL_VERIFYHOST and CURLOPT_SSL_VERIFYPEER. A remote attacker can perform MitM attack and pass spoofed content into PDF file.
3) Incorrect comparison (CVE-ID: CVE-2024-56522)
The vulnerability allows a remote attacker to bypass security restrictions.
The vulnerability exists due to incorrect comparison in unserializeTCPDFtag when processing TCPDF tag hashes. A remote attacker can bypass certain security restrictions.
4) Cross-site scripting (CVE-ID: CVE-2024-56527)
The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data when displaying error messages. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
Remediation
Install update from vendor's website.
References
- https://github.com/tecnickcom/TCPDF/commit/c9f41cbb84880bdb4fc3e0a9d287214d1ac4d7f4
- https://github.com/advisories/GHSA-4p8j-vhjm-6pvw
- https://github.com/tecnickcom/TCPDF/commit/aab43ab0a824e956276141a28a24c7c0be20f554
- https://github.com/advisories/GHSA-9mgx-552f-59p6
- https://github.com/tecnickcom/TCPDF/commit/d54b97cec33f4f1a5ad81119a82085cad93cec89
- https://github.com/advisories/GHSA-w95c-7994-ghpr
- https://andrea0.medium.com/analysis-of-cve-2024-56527-dbdab6962add
- https://github.com/tecnickcom/TCPDF/commit/11778aaa2d9e30a9ae1c1ee97ff349344f0ad6e1
- https://github.com/advisories/GHSA-qx95-cwh6-9mvq